منابع مشابه
Vascular plant abundance and diversity in an alpine heath under observed and simulated global change
Global change is predicted to cause shifts in species distributions and biodiversity in arctic tundra. We applied factorial warming and nutrient manipulation to a nutrient and species poor alpine/arctic heath community for seven years. Vascular plant abundance in control plots increased by 31%. There were also notable changes in cover in the nutrient and combined nutrient and warming treatments...
متن کاملEnzymology under global change: organic nitrogen turnover in alpine and sub-Arctic soils.
Understanding global change impacts on the globally important carbon storage in alpine, Arctic and sub-Arctic soils requires knowledge of the mechanisms underlying the balance between plant primary productivity and decomposition. Given that nitrogen availability limits both processes, understanding the response of the soil nitrogen cycle to shifts in temperature and other global change factors ...
متن کاملDifferential Photosynthetic Inhibition by UltraViolet Radiation in Species from the Arctic- Alpine Life Zone Author(s):
Inhibition of photosynthesis and epidermal damage resulting from ultraviolet irradiation were assessed for arctic and alpine plant species. These species were taken from a latitudinal gradient of the arctic-alpine life zone from the Andes to northern Alaska, which spans a steep change in solar UV-B irradiation (280 to 320 nm). Ecotypes and species from the Arctic, where solar UV-B flux is very ...
متن کاملFood Demand and Supply under Global Change
of the dissertation submitted to Institute of Earth and Environmental Science, University of Potsdam Food Demand and Supply under Global Change
متن کاملFuture battlegrounds for conservation under global change.
Global biodiversity is under significant threat from the combined effects of human-induced climate and land-use change. Covering 12% of the Earth's terrestrial surface, protected areas are crucial for conserving biodiversity and supporting ecological processes beneficial to human well-being, but their selection and design are usually uninformed about future global change. Here, we quantify the ...
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ژورنال
عنوان ژورنال: Gayana. Botánica
سال: 2000
ISSN: 0717-6643
DOI: 10.4067/s0717-66432000000100001